Suhagra 100 mg belongs to a class of drugs called PDE5 inhibitors (phosphodiesterase type 5 inhibitors). These drugs work by blocking the enzyme PDE5, which can restrict blood flow to the penis, making it difficult to achieve an erection. By inhibiting PDE5, Suhagra 100 mg helps to relax the blood vessels in the penis, thereby allowing for increased blood flow when sexually stimulated.

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